Joule spectroscopy of hybrid superconductor–semiconductor nanodevices
Abstract Hybrid superconductor-semiconductor devices offer highly tunable platforms, potentially suitable for quantum technology applications, that have been intensively studied in the past decade. Here we establish that measurements of the superconductor-to-normal transition originating from Joule...
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| Format: | Article |
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Nature Portfolio
2023-05-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-38533-2 |
| _version_ | 1797822811671101440 |
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| author | A. Ibabe M. Gómez G. O. Steffensen T. Kanne J. Nygård A. Levy Yeyati E. J. H. Lee |
| author_facet | A. Ibabe M. Gómez G. O. Steffensen T. Kanne J. Nygård A. Levy Yeyati E. J. H. Lee |
| author_sort | A. Ibabe |
| collection | DOAJ |
| description | Abstract Hybrid superconductor-semiconductor devices offer highly tunable platforms, potentially suitable for quantum technology applications, that have been intensively studied in the past decade. Here we establish that measurements of the superconductor-to-normal transition originating from Joule heating provide a powerful spectroscopical tool to characterize such hybrid devices. Concretely, we apply this technique to junctions in full-shell Al-InAs nanowires in the Little-Parks regime and obtain detailed information of each lead independently and in a single measurement, including differences in the superconducting coherence lengths of the leads, inhomogeneous covering of the epitaxial shell, and the inverse superconducting proximity effect; all-in-all constituting a unique fingerprint of each device with applications in the interpretation of low-bias data, the optimization of device geometries, and the uncovering of disorder in these systems. Besides the practical uses, our work also underscores the importance of heating in hybrid devices, an effect that is often overlooked. |
| first_indexed | 2024-03-13T10:13:37Z |
| format | Article |
| id | doaj.art-78b617588df2405e985e69ac2d511a64 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-13T10:13:37Z |
| publishDate | 2023-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-78b617588df2405e985e69ac2d511a642023-05-21T11:20:22ZengNature PortfolioNature Communications2041-17232023-05-011411810.1038/s41467-023-38533-2Joule spectroscopy of hybrid superconductor–semiconductor nanodevicesA. Ibabe0M. Gómez1G. O. Steffensen2T. Kanne3J. Nygård4A. Levy Yeyati5E. J. H. Lee6Departamento de Física de la Materia Condensada, Universidad Autónoma de MadridDepartamento de Física de la Materia Condensada, Universidad Autónoma de MadridCondensed Matter Physics Center (IFIMAC), Universidad Autónoma de MadridCenter for Quantum Devices, Niels Bohr Institute, University of CopenhagenCenter for Quantum Devices, Niels Bohr Institute, University of CopenhagenCondensed Matter Physics Center (IFIMAC), Universidad Autónoma de MadridDepartamento de Física de la Materia Condensada, Universidad Autónoma de MadridAbstract Hybrid superconductor-semiconductor devices offer highly tunable platforms, potentially suitable for quantum technology applications, that have been intensively studied in the past decade. Here we establish that measurements of the superconductor-to-normal transition originating from Joule heating provide a powerful spectroscopical tool to characterize such hybrid devices. Concretely, we apply this technique to junctions in full-shell Al-InAs nanowires in the Little-Parks regime and obtain detailed information of each lead independently and in a single measurement, including differences in the superconducting coherence lengths of the leads, inhomogeneous covering of the epitaxial shell, and the inverse superconducting proximity effect; all-in-all constituting a unique fingerprint of each device with applications in the interpretation of low-bias data, the optimization of device geometries, and the uncovering of disorder in these systems. Besides the practical uses, our work also underscores the importance of heating in hybrid devices, an effect that is often overlooked.https://doi.org/10.1038/s41467-023-38533-2 |
| spellingShingle | A. Ibabe M. Gómez G. O. Steffensen T. Kanne J. Nygård A. Levy Yeyati E. J. H. Lee Joule spectroscopy of hybrid superconductor–semiconductor nanodevices Nature Communications |
| title | Joule spectroscopy of hybrid superconductor–semiconductor nanodevices |
| title_full | Joule spectroscopy of hybrid superconductor–semiconductor nanodevices |
| title_fullStr | Joule spectroscopy of hybrid superconductor–semiconductor nanodevices |
| title_full_unstemmed | Joule spectroscopy of hybrid superconductor–semiconductor nanodevices |
| title_short | Joule spectroscopy of hybrid superconductor–semiconductor nanodevices |
| title_sort | joule spectroscopy of hybrid superconductor semiconductor nanodevices |
| url | https://doi.org/10.1038/s41467-023-38533-2 |
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